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LSOCH's avatar
LSOCH
Icon for New Contributor rankNew Contributor
5 years ago
Solved

EMIF SPEC ESTIMATOR - ARRIA 10 WITH DDR4

Hi , i have a question regarding ARRIA 10 10AX022E4F27I3LG device connection to a DDR4 single device MT40A512M16LY-062E IT. the clock for the DDR4 is 800Mhz max in our design. The DDR4 p/n i mentio...
  • Rashmi1's avatar
    Rashmi1
    5 years ago

    Hi Lior,


    Please refer to the below youtube

    tutorial regarding EMIF spec estimator:

    https://www.youtube.com/watch?v=oGmVs_oCE5c



    1) what does the column "memory device speed grade" in the EMIF spec

    estimator mean?


    -- Memory vendor data sheets will provide information regarding the speed grade. Please refer to your vendor datasheet to enter this value in the spec estimator.


    Thanks,

    Intel Forum support


LSOCH's avatar
LSOCH
Icon for New Contributor rankNew Contributor
5 years ago

Hi ,

I will try to ask the question in a different way.

I am using the DDR4 with the highest speed bin MT40A512M16LY-062E (062E means 1600Mhz clock means 3200 MT/S).

but , I want to work with a 800Mhz clock not with 1600mhz clock. ( clock from the ARRIA 10 to the DDR4)

in the Quartus EMIF IP wizard in the MEM TIMING tab in the SPEED BIN the highest speed bin which is available is 2666 MT/S and not 3200 MT/S.

can i use the 3200 MT/S DDR4 device (operated with 800Mhz clock) although its speed bin is not available in the Quartus EMIF IP wizard ?

Hope that now my question is clear.

Thanks,

Lior